43118791 has 2 divisors, whose sum is σ = 43118792. Its totient is φ = 43118790.

The previous prime is 43118717. The next prime is 43118849. The reversal of 43118791 is 19781134.

43118791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43118791 - 2¹⁵ = 43086023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43118701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21559395 + 21559396.

It is an arithmetic number, because the mean of its divisors is an integer number (21559396).

Almost surely, 2^43118791 is an apocalyptic number.

43118791 is a deficient number, since it is larger than the sum of its proper divisors (1).

43118791 is an equidigital number, since it uses as much as digits as its factorization.

43118791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 34.

The square root of 43118791 is about 6566.4900060839. The cubic root of 43118791 is about 350.6621234880.

The spelling of 43118791 in words is "forty-three million, one hundred eighteen thousand, seven hundred ninety-one".